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Altera_Forum
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17 years ago

DDR3 on the Stratix III memory board

Hello I am new to Stratix III. I been trying to create a simple DDR3 Altmemphy test program for the Altera Stratix III memory board. Using the AN436 example as a guide I have a program compil...
Altera_Forum's avatar
Altera_Forum
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17 years ago

Well I don't know exactly what is going on but these are my first suspicions:

1 - A damaged board.

2 - A defective or degraded Byte Blaster

3 - Borderline JTAG timing between the Byte Blaster and S3 board. Maybe they just never tested the two together.

If the USB-Blaster doesn't fix it then I would seriously consider that the board has some problem or I would start to call into question the design of the JTAG on the board.

One thing you can try doing is probing the JTAG data lines with a scope and make sure they look correct. In fact sometimes just adding some capacitance to the signals (like a scope probe) can make things start working.

Jake